Sash-fastener



UNITED STATES PATENT OFFICE.

ISABELLE L. ATWOOD, OF EXETER, NEW HAMPSHIRE.

sAsH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 543,226, dated July 23, 1895.

`Application tiled February l, 1895. Serial No. 536,910. (No model.)

To all whom it'- may concern,.-

Be it known that I, ISABELLE L. ArwooD, a citizen ofthe United States, residing at Exeter, in the county of Rockingham and State of New Hampshire, have invented certain newand useful Improvements in Sash-Fasteners, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention has for its object to provide a sash-fastener of simple, inexpensive, and convenient character, which shall serve to hold the upper and lower sashes of a window locked together in any desired position, either completely closed or partly open.

Frequently it is desired to open the window of a room partially for purposes of ventilation. The particular aim of my invention is to enable this-to be done with perfect safety, so far as the entrance of intruders from the outside is concerned, by providing a device by means of which, when the sashes have been so set relatively to each other as to leave the desired opening for purposes of ventilation, they shall be locked together. in a manner which'will preventany person on the outside from opening them farther.

My invention consists in the sash-fastener of novel and improved character and construction, which I will nowproceed to describe with reference to the drawings.

In the drawings,l Figure 1 is a perspective of portions of a window-frame and its sashes, showing my improved fastener applied to the said sashes. Fig. 2 is a view of the same'in vertical section through the fastener. Fig. 3 is a view of the fastener detached. Fig. 4 is a view similar to Fig. 2, but showing a modification. Fig.5 illustrates a further modification. i

1 represents part'of a window-frame Within which are arranged to slide, in usual manner, the two sashes 2 and 3.

f1 is'the upper part and 5 is the under part of a frame, casing, or housing within which is received the bolt 6, the said bolt being arranged to slide in the direction of its length. The said parts 4. ,and 5 are securedV together in any suitable manner, as by rivets or screws 7, andthe frame, casing, or housing is secured in place on the meeting-rail 11 of the lower sash by screws 9, or in other preferred ing, and extending through a slot 14. in thel part 4. of the latter. The inner end of the said pin is provided with a laterally-projecting flange'l3l, which may be formed integrally with the pin, as shown, or may-otherwise be applied thereto in any preferred manner.

'132 is a knob or enlargement which may be applied to the outer end of the pin 13, if dcsired, to constitute a thumbpiece. The knob or enlargement 132, as shown, may be intel'- nally threaded, and be screwed onto the externally-threaded end of the pin, or may be applied in other preferred manner. r1"he flange 131 prevents the withdrawal of the pin. The pin 13 moves freely through the hole in the bolt 6, and at the opposite' extremes of .the movement of the bolt the inner end of the said pin is pressed by hand or permitted to drop by gravity into the respective recesses 15 151. When the pin 13 is dropped into rccess 151, itholds the bolt locked and prevents the same lfrom being shifted until after the pin 13 has been raised sufiiciently to withdraw its inner end from the recess. When the pin 13 is dropped into recess 15 it holds the bolt retracted and completely out of contact with the upper sash, so as to avoid wear and injury to` the latter. Preferably the recesses 15 151 are made in the lower part 5 of the frame, casing,or housing, and between the two recesses the said part-5 is depressed at 16 to permit the inner end of the pin 13, after the latter has been withdraw from either recess, to be shifted from the one recess to the other. v

In the modified form of my device represented in Fig. 4 the recesses at the inner end of the pin 13 are formed in the material of the meeting-rail of the lower sash, as at 152 152.

-The pin 13 prevents the bolt 6 from being Withdrawn from the frame or housing.

The stile of the upper sash has a number of holes made therein at different heights, as at 18, to receive the end of the bolt 6 atterthe latter has been projected. To prevent wear i a plate 19, Figs. 1 and 2, is applied to the said stile, it having perforations therethrough at 20, this plate being secured in place by screws 21, or bushing or thimbles 191 of suitable material may inserted into the holes, as shown in Fig. 5. A

24 is a spring which may be employed Within the frame, casing, or housing, at one end of the bolt 6, and arranged to bear against said bolt by its one end and against the interior surface of the frame, casing, or housing by its other end. The said spring serves to project the end of thebolt 6 automatically beyond the frame, casing, or housing. When the bolt is retracted into the latter by applying force to the thumb-piece on the pin 18, the spring 24 is compressed, and it is held in this state of compression so long as the inner end of the pin remains entered into the recess l5. When the pin is pulled outward so that its inner end is clear ot' the Walls of said recess, the vspring will act to project the bolt. The other recess 151 receives the inner end of pin 13 after the bolt has been completely projected and prevents the bolt from being forced inward again until after the pin has been Withdrawn from such recess, which is not easily accomplished save by grasping the enlargement 132 quite firmly with the fingers. This guards against the sashes being nnfastened by a person working from without the window.

In some cases, when the spring is employed, I may dispense with the recess 151.

My invention is of Value when used in connection with the sashes of windows in nurseries or other places, in which small children are kept, it enabling the sashes to be opened said frame, and the pin 13 inserted looselythrough a hole in the said bolt, the said pin having its outer end extended through the slot 14 and its inner end having an enlargement, and also being adapted to enter the respective recesses 15, 151 to lock the bolt 6 at the opposite extremes of its movement, substantially as described.

2. The improved sash-fastener consisting of a frame having aslot 14 and the recess 15, the bolt 6, the spring 24 acting to project the bolt, and the pin 13 inserted loosely through a hole in the bolt, the outer end of said pin extending through the slot 14 and the inner end thereof having an enlargement and also being adapted to enter the recess 15 to serve as a detent to hold the bolt retracted, substantially as described.

In 'testimony whereof I afx my signature in presence of two witnesses.

ISABELLE L. ATWOOD. Witnesses:

CHAs. F. RANDALL, y WM. A. MAcLEoD. 

